Hashcards — First Cricket-based NFT Collection

8 min readApr 6, 2021

What are Hashcards?

Hashcards are the first cricket-based digital collectibles representing 100 iconic cricket players. Hashcards are a collection of 2100 NFTs made up of original copyrighted cricket player art, motion design, as well as traits and meta-data that differentiate the NFTs from each other.

The Hashcards collection is built on the Ethereum blockchain based on the ERC-721 standard, and is hosted on IPFS. Thanks to blockchain technology, Hashcards are verifiably scarce, represent true digital ownership, and are interoperable across a metaverse of different applications and games.

For the 2021 edition, each of the 100 iconic cricket players will have 21 Hashcards across 3 different types indicating scarcity — Unique (1 NFT per player), Super Rare (7 NFTs per player), and Rare (13 NFTs per player).

Why should I consider owning a Hashcard?

The primary reasons to consider owning a Hashcard are:

1.Its innovative nature and novelty value: For the first time in history, 1.3bn cricket fans can collect their favourite players with the benefits of provable scarcity (fixed supply). If you own a Hashcard, it is yours — you have complete ownership of the card, and it cannot be copied or taken away from you.

2. Its desirability: Each Hashcard carries a unique level of desirability and as a result, value to different people — likeness, rarity, serial number, nationality, skill, traits, meta-data, etc.

3. Its tradability: Hashcards are freely tradable across open marketplaces such as OpenSea, Rarible, and SuperRare, amongst others. Users also enjoy access to the complete digital history of all Hashcards.

4. Its in-game value: In addition to the underlying collectable appeal and intrinsic value, they can be used in Cricket Clashes, the first game that can be played with Hashcards. Cricket Clashes (launching in Q2 2021) is a multiplayer strategy game that involves collecting, trading, and battling Hashcards with real money. The stats-based game uses stablecoins for payments, smart contracts for determining and paying out prizes, and on-chain notarization to ensure the game results are provably fair.

5. Its third-party game value: Hashcards are usable across a metaverse of different applications. The ultimate vision is for Hashcards to carry value across multiple games. Imagine a world where other game publishers have built new experiences that also utilise Hashcards, the possibilities are endless!

6. Its community value: Hashcards holders will enjoy early access to future NFT drops (including moments), and can win tokenized limited edition physical goods: hoodies, posters, and other goodies (think: Unisocks).

Naval Ravikant says: “For NFTs representing digital art and collectibles, the creator cannot enforce scarcity — it’s up to a surrounding community to imbue the authorized NFT with scarcity and prestige within the context of that community.
Just as HODLers imbue Bitcoin with value, and developers infuse Ethereum with value, collectors, admirers, and users imbue NFTs with value. NFTs gain value when displayed, used, and promoted within vibrant and growing communities. NFTs are monetized memes.
As with most art and most tokens, most NFTs will have very little value. But a select few NFTs will become focal points for communities who gather to celebrate art, build collections, and explore virtual worlds.”

How many Hashcards exist? How much do they cost to mint? What about the traits and meta-data?

Number of Hashcards: For the 2021 edition, 2100 Hashcards will be available for minting on Round’s website.
Price of a Hashcard: Hashcards are free to mint and cost $0! Users will only have to pay the gas fees for the Hashcard minting transactions.
Rarity of Hashcards: 100 Hashcards are Unique (1 NFT per cricket player), 700 Hashcards are Super Rare (7 NFTs per cricket player), and 1300 Hashcards are Rare (13 NFTs per cricket player).
Traits of Hashcards: The rarity of each trait will be revealed after the completion of the drop. Users will be able to scroll through the gallery on Round’s website to view all the 2100 Hashcards to see if they can detect patterns or other hidden traits.

What do I need to mint a Hashcard?

To mint a Hashcard, you will need to possess a digital currency wallet first. A digital wallet acts like a bank account for your ETH. Make sure you don’t forget your recovery key.

We recommend you use the Metamask wallet interface, the most robust and reliable wallet today. You can install it as a plugin on top of your Chrome or Firefox browser.
Are you new to the Metamask wallet? No problem, please watch this video to understand how it works and how to get it set-up.
For other options we recommend Fortmatic, Torus, and Portis, as well as any wallet that is compatible with WalletConnect.

Once you have created your wallet, the easiest way to fund it is with MoonPay (recommended for the US and Canada), Ramp (great for EU), or Transak (best option for India), wherein you can convert your local currency into ETH. The funds will appear on your wallet in minutes, depending on the payment method you choose — the fastest being open banking transfers and cards.

When can I mint a Hashcard?

The NFT drop begins on Friday, 16th April, 2021 at 11:57am UTC, and will occur in 3 phases: 900 NFTs will be dropped in Phase I, 600 NFTs will be dropped in Phase II, and the final 600 NFTs will be dropped in Phase III.

Phase I NFTs will be assigned immediately upon minting. Phase II and Phase III NFTs won’t be assigned till either the drop is complete, or the reveal date has passed at 11:56am UTC on 6th May, 2021.

Phase I:

Number of NFTs available: 900 Hashcards
Phase I Start: 11:57am UTC on 16th April, 2021
Phase I End: 11:56am UTC on 23rd April, 2021
Distribution of NFTs: Open
Assignment of NFTs: Immediately upon minting
NFT Price: 0 ETH

Phase II:

Number of NFTs available: 600 Hashcards
Phase II Start: 11:57am UTC on 23rd April, 2021
Phase II End: 11:56am UTC on 30th April, 2021
Distribution of NFTs: Pseudo-random (provably fair)
Assignment of NFTs: 11:56am UTC on 6th May, 2021 or completion of the drop, whichever is earlier
NFT Price: 0 ETH

Phase III:

Number of NFTs available: 600 Hashcards
Phase III Start: 11:57am UTC on 30th April, 2021
Phase III End: 11:56am UTC on 6th May, 2021 or completion of the drop, whichever is earlier
Distribution of NFTs: Pseudo-random (provably fair)
Assignment of NFTs: 11:56am UTC on 6th May, 2021 or completion of the drop, whichever is earlier
NFT Price: 0 ETH

Tell me more about the reveal period

The drop will have a reveal period of up to 14 days from the beginning of Phase II. The reveal period will start at 11:57am UTC on 23rd April, 2021 and end at 11:56am UTC on 6th May, 2021 or the completion of the drop, whichever is earlier.
If either the drop is complete, or the reveal date has passed (i.e. 14 days from the start date of Phase II), a random startingIndex will be generated in the Hashcards smart contract using on-chain pseudo-randomness.
The function which finalizes the startingIndex is public and can be triggered by anyone. It can be triggered after the drop is complete, or the reveal period has passed, whichever is earlier.

When will the minted HashCard get assigned to me?

Phase I

The final Hashcard that will be assigned to each minter in Phase I immediately upon minting will correspond to the NFT at:
finalIndex = mintIndex
For e.g., if a user mints an NFT that was at the index 800 in the original sequence, since this particular mint transaction is a part of Phase I, she will receive the NFT with the finalIndex 800 itself.

Phase II and Phase III

The final Hashcard that will be assigned to each minter in Phase II and Phase III will correspond to the NFT at:
finalIndex = 900 + ((mintIndex + startingIndex) % 1200)
For e.g., if a user mints an NFT that was at the index 1600 in the original sequence and the startingIndex generated is 100, then since this particular mint transaction falls in Phase II, she will receive the NFT corresponding to the index 1400 (=900 + (1600+100) % 1200) in the original sequence.
The NFT metadata on the Ethereum blockchain will also be updated based on the value of the finalIndex.
This indicates that as soon as the finalIndex is calculated, the user can know with certainty which NFT she minted in Phase II and Phase III.

Tell me more about the provably fair distribution for Phases II and III

The Phase II and Phase III Hashcards are distributed and assigned in such a way that no one can have an unfair advantage in the drop — not even us. We are taking the following steps to ensure fairness:

The NFTs are arranged in a pre-defined sequence, which will be present on the Round’s website publicly from the start of the drop along with the index of each NFT. The website will also show the hash of every NFT uploaded to IPFS.
The hash of the string formed by concatenating all the individual hashes of the NFTs in that particular sequence will be stored on-chain in the Hashcards smart contract. Anyone can verify the correctness of the hash, which ensures that all the NFTs as well as the sequence are immutable.
The generation of the startingIndex is pseudo-random and can be triggered by any participant of the NFT drop.

The above steps ensure that the Round team cannot alter the underlying NFTs or the original sequence. This also ensures that nobody has any control over the startingIndex, and therefore no user can know which NFT will be assigned to her in Phase II and Phase III.

Will I be able to trade the Hashcards after the drop?

Hashcards follow the ERC-721 standard and, as such, can be transferred freely amongst Ethereum wallets. We will not provide a secondary marketplace for Hashcards on our website. Users are free to create secondary markets (at their own free will) for their Hashcards on third-party websites such as OpenSea, Rarible, and SuperRare, amongst others.

Hashcards are made up of original copyrighted art. Full ownership and unlimited usage rights will be given to the users over their NFTs. You can print your Hashcard on a t-shirt, you can hang it on a wall. As the private key holder of the wallet that owns the NFT, you are free to do with it as you please!

Proof-of-Work: Round’s Version

Stay tuned!

This is your opportunity to be amongst the first to participate in one of the largest and coolest sports-based NFT projects, which is also the first one to introduce 1.3 billion cricket fans to the world of NFTs.

We will be sharing more details soon, so please stay tuned and join us on this exciting journey! Let’s bring the world of cricket to public blockchains!

— Round Team

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